#include <iostream>
using namespace std;

class Wind {
public:
	Wind(int level) {
		this->level = level;
	}
	int getLevel() {
		return this->level;
	}
	Wind& addLevel(const Wind& wind) {
		this->level += wind.level;
		return *this;
	}
private:
	int level;
};
void test030201() {
	Wind w(5);
	cout << w.getLevel() << endl;
}
void test030202() {
	Wind w1(5);
	Wind w2(5);
	w1.addLevel(w2).addLevel(w2);
	cout << w1.getLevel() << endl;
}
int main0302() {
	// test030201();
	test030202();
	system("pause");
	return 0;
}